<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登陆表单区域 -->
      <el-form
        ref="login_Form"
        :model="loginForm"
        :rules="loginFormrules"
        label-width="0px"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="iconfont icon-user"
          >
          </el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            prefix-icon="iconfont icon-3702mima"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登陆</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 登陆表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456',
      },
      // 表单的验证规则对象：通过prop来绑定验证规则
      loginFormrules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登陆用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在3到10个字符', trigger: 'blur' },
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登陆密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在6到15个字符', trigger: 'blur' },
        ],
      },
    }
  },
  methods: {
    // 点击重置按钮，重置登陆表单
    resetLoginForm() {
      // console.log(this);
      this.$refs.login_Form.resetFields()
    },
    //点击登陆，对表单进行验证
    login() {
      this.$refs.login_Form.validate(async (valid) => {
        // console.log(valid) //返回值true,false，来判断验证是否通过
        if (!valid) return
        // const result = await this.$http.post("login", this.loginForm); //解构赋值
        const { data: result } = await this.$http.post('login', this.loginForm)
        // console.log(result); //获取登陆信息
        if (result.meta.status != 200) return this.$message.error('登陆失败')
        this.$message.success('登陆成功')
        // 1.将登陆后的token保存到客户端的sessionStrorage中
        window.sessionStorage.setItem('token', result.data.token)
        // 2.通过编程式导航跳转到后台主页
        this.$router.push('/home')
      })
    },
  },
}
</script>


<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
}

.login_container {
  height: 100%;
}

.login_box {
  position: absolute;
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  background-color: #fff;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 10px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>